<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<!--移动端-->
		<link media="screen and (max-device-width:600px)" rel="stylesheet" href="1.css" />
		<!--pc端-->
		<link media="screen and (max-width:900px)" rel="stylesheet" href="2.css" />
	</head>
	<body>
		<div></div>
		<script type="text/javascript" media="screen and (max-width:900px)" src="1.js"></script>
	</body>
</html>
